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From cloud-fan <...@git.apache.org>
Subject [GitHub] spark pull request #18429: [SPARK-21222] Move elimination of Distinct clause...
Date Tue, 27 Jun 2017 08:27:45 GMT
Github user cloud-fan commented on a diff in the pull request:

    https://github.com/apache/spark/pull/18429#discussion_r124210428
  
    --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala
---
    @@ -40,6 +40,7 @@ abstract class Optimizer(sessionCatalog: SessionCatalog, conf: SQLConf)
       protected val fixedPoint = FixedPoint(conf.optimizerMaxIterations)
     
       def batches: Seq[Batch] = {
    +    Batch("Eliminate Distinct", Once, EliminateDistinct) ::
    --- End diff --
    
    hmm, does it have to be execute before the "Finish Analysis" batch?


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